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Spark plug
An example of the element Yttrium

Sample Image
Yttrium Spark plug
Spark plug.
According to this interesting article about different elements in spark plugs, and Bosch's own website these spark plugs use yttrium in the electrodes to increase the useful life of the plug. (The main constituent is platinum as in ordinary long-life plugs.) Given that common platinum spark plugs already last longer than some cars, is this really necessary? I don't know, but the electrode configuration sure looks cool.
Source: Auto Parts Store
Contributor: Theodore Gray
Acquired: 10 January, 2003
Text Updated: 11 August, 2007
Price: $5
Size: 3"
Purity: <1%
Sample Group: Spark Plugs
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